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首页> 外文期刊>Journal of human kinetics >Plantar-flexor Static Stretch Training Effect on Eccentric and Concentric Peak Torque - A comparative Study of Trained versus Untrained Subjects
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Plantar-flexor Static Stretch Training Effect on Eccentric and Concentric Peak Torque - A comparative Study of Trained versus Untrained Subjects

机译：Plantar-experor对偏心和同心峰扭矩的静态拉伸训练效应 - 训练与未经训练科目的比较研究

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The aim of this study was to examine the long-term effects of static stretching of the plantar-flexor muscles on eccentric and concentric torque and ankle dorsiflexion range of motion in healthy subjects. Seventy five healthy male volunteers, with no previous history of trauma to the calf that required surgery, absence of knee flexion contracture and no history of neurologic dysfunction or disease, systemic disease affecting the lower extremities were selected for this study. The participants were divided into three equal groups. The control group did not stretch the plantar-flexor muscles. Two Experimental groups (trained and untrained) were instructed to perform static stretching exercise of 30 second duration and 5 repetitions twice daily. The stretching sessions were carried out 5 days a week for 6 weeks. The dorsiflexion range of motion was measured in all subjects. Also measured was the eccentric and concentric torque of plantar-flexors at angular velocities of 30 and 120°/s pre and post stretching. Analysis of variance showed a significant increase in plantar-flexor eccentric and concentric torque (p < 0.05) of trained and untrained groups, and an increase in dorsiflexion range of motion (p < 0.05) at both angular velocities for the untrained group only. The static stretching program of plantar-flexors was effective in increasing the concentric and eccentric plantarflexion torque at angular velocities of 30 and 120°ls. Increases in plantar-flexors flexibility were observed in untrained subjects. ^g>calf muscle, isokinetic torque, static stretching
机译：本研究的目的是检查跖锐肌肉静态拉伸对健康受试者的偏心和同心扭矩和踝背部运动范围的长期影响。七十五名健康男性志愿者，没有以前的创伤史，需要手术，没有膝关节屈曲挛缩，没有神经功能障碍或疾病的历史，为这项研究选择了影响下肢的全身疾病。参与者分为三个相等的群体。对照组没有拉伸跖肌肌肉。指示两组（训练有素和未经训练）进行静态拉伸运动，每天两次进行30秒持续时间和5次重复。伸展会话每周5天进行6周。在所有受试者中测量了背积的运动范围。还测量的是Portharar屈肌的偏心和同心扭矩，在半角速度为30和120°/ s的前和后拉伸。方差分析显示训练和未经训练的训练和未经训练的组的偏心和同心扭矩（P <0.05）的显着增加，并且仅为未经培训的组的角速度增加了背积尺寸的运动范围（P <0.05）。 Plantar屈肌的静态拉伸程序在角速度为30和120°Ls的角速度下增加同心和偏心跖骨扭矩。在未经训练的受试者中观察到植物屈曲灵活性的增加。 ^ g>小牛肌肉，等内扭矩，静态拉伸

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